Nkhani

Mafilimu a LDPE nthawi zambiri amapangidwa ndi kuwombera ndi kuponya. Kutaya polyethylene filimu ali makulidwe yunifolomu, koma kawirikawiri ntchito chifukwa cha mtengo wake wapamwamba. Filimu ya polyethylene yowombedwa imapangidwa kuchokera ku ma pellets a PE omwe amawumbidwa ndi makina owombera, omwe amagwiritsidwa ntchito kwambiri chifukwa chotsika mtengo.

Filimu ya polyethylene yotsika kwambiri ndi yowoneka bwino, yonyezimira, yofewa ya filimuyo, yokhala ndi kukhazikika kwamphamvu kwamankhwala, kusindikiza kutentha, kukana madzi ndi kukana chinyezi, kukana kuzizira, kumatha kuwiritsa. Drawback yake yayikulu ndi chotchinga chosauka kwa okosijeni, chomwe chimagwiritsidwa ntchito kwambiri muzotengera zosinthika zosinthika, gawo lamkati la filimuyo, komanso lomwe limagwiritsidwa ntchito kwambiri, filimu yayikulu kwambiri yopangira ma pulasitiki, yowerengera oposa 40% ya filimuyo. kugwiritsa ntchito filimu yopangira mapulasitiki.

Popeza molekyulu ya polyethylene ilibe magulu a polar ndipo imakhala ndi mphamvu zambiri za crystallinity ndi mphamvu zochepa zaulere, filimuyi ili ndi katundu wochepa wosindikiza komanso wosakanizidwa bwino ndi inki ndi zomatira, choncho chithandizo chapamwamba chimafunika musanasindikizidwe ndi kupukuta.

Zotsatirazi ndizolephereka komanso zothetsera filimu yowombedwa ndi LDPE:

Kanema womata kwambiri, wosatsegula bwino

Kusanthula zomwe zimayambitsa:

1. The resin yaiwisi yaiwisi si ya mtundu woyenera, osati kuwombedwa filimu kalasi LDPE utomoni, amene alibe wotsegulira kapena wotsegulira ndi khalidwe otsika;

2. Kutentha kwa utomoni wosungunuka ndikokwera kwambiri, madziwa ndi aakulu kwambiri;

3. Chiŵerengero chowomba ndi chachikulu kwambiri, zomwe zimapangitsa kuti mafilimu asamatsegulidwe bwino;

4. Kuthamanga kozizira kumakhala kochepa kwambiri, filimuyo siikhazikika mokwanira, ndipo kugwirizana kwapakati kumachitika pansi pa mphamvu ya traction roller;

5. Kuthamanga kumathamanga kwambiri.

Zothetsera

① Bwezerani utomoni wa zopangira, kapena onjezerani kuchuluka kwa chotsegulira pahopper;

② Moyenera kuchepetsa kutentha kwa extrusion ndi kutentha kwa utomoni;

③ Moyenera kuchepetsa kuwomba chiŵerengero;

④ Wonjezerani mphamvu ya mphepo kuti muwongolere kuziziritsa ndikufulumizitsa kuzizira kwa filimuyo;

⑤ Chepetsani liwiro lotsitsa moyenerera.

Kusawonekera bwino kwamakanema

Kusanthula zomwe zimayambitsa:

1. otsika extrusion kutentha, osauka utomoni plasticization, chifukwa osauka poyera filimu pambuyo nkhonya akamaumba;

2. Chiŵerengero cha kuwomba ndi chochepa kwambiri;

3. Kuzizira kozizira, motero kumakhudza kuwonekera kwa filimuyo;

4. Chinyezi chomwe chili mu utomoni wazinthu zopangira ndi zazikulu kwambiri;

5. Kuthamanga kothamanga kumathamanga kwambiri ndipo filimuyo siinazizirike mokwanira.

Yankho

① Moyenera kuonjezera kutentha extrusion, kuti utomoni akhoza uniformly plasticized;

② Wonjezerani moyenerera chiŵerengero cha kuwomba;

③Wonjezerani mphamvu ya mphepo kuti muwongolere kuzizira;

③ Wonjezerani kuchuluka kwa mpweya kuti muwonjezere kuzizira;

④ Yanikani zopangira;

⑤ Chepetsani liwiro la kukoka moyenerera.

Makwinya amafilimu

Kusanthula chifukwa

1. Kuchuluka kwa filimu yosagwirizana;

2. Kusakwanira kuzirala;

3. Chiŵerengero chowombera ndi chachikulu kwambiri, kuchititsa kuti filimuyo ikhale yosasunthika, ikugwedezeka mmbuyo ndi kumbuyo kuchokera kumbali ndi mbali, kotero kuti filimuyo imakhala ndi makwinya;

4. Ngodya ya herringbone clamp ndi yayikulu kwambiri, kuwira kwa filimuyo kumaphwanyidwa patali pang'ono, kotero filimuyo imakhalanso ndi makwinya;

5. Kupanikizika kwa mbali zonse za traction roller sikufanana, mbali imodzi ndi yapamwamba ndipo mbali ina ndi yochepa;

6. Nkhwangwa pakati pa odzigudubuza sali ofanana, zomwe zimakhudza kukhazikika ndi flatness ya filimuyo, motero makwinya amapezeka.

Yankho

① Sinthani makulidwe a filimuyo kuti muwonetsetse makulidwe ofanana;

② Sinthani kuziziritsa kuti muwonetsetse kuti filimuyo itha kukhazikika bwino;

③ Moyenera kuchepetsa kuwomba chiŵerengero;

③ Chepetsani kuwomba moyenerera;

④ Chepetsani kugunda kwa herringbone moyenerera;

⑤ Sinthani kukakamizidwa kwa chodzigudubuza kuti muwonetsetse kuti filimuyo imayendetsedwa ndi mphamvu yofanana;

⑥ Yang'anani mzere wa shaft iliyonse ndikupangitsa kuti ifanane.

Kusagwira bwino kwa filimu yosindikiza kutentha

Kusanthula chifukwa

1. Mzere wa chisanu ndi wochepa kwambiri, mamolekyu a polima amapita patsogolo, motero kupanga filimuyi kukhala pafupi ndi filimu yozungulira, zomwe zimapangitsa kuti kutentha kutseke kutsika;

2. Chiŵerengero chowomba ndi chiwongolero ndi chachikulu kwambiri, ndipo filimuyo imadutsa njira yotambasula, motero imakhudza ntchito yosindikiza kutentha kwa filimuyo.

Yankho

① Sinthani kukula kwa voliyumu ya mphepo mumphepo yamphepo kuti mame awoloke pang'ono, momwe mungathere, pansi pa malo osungunuka a pulasitiki ndikuwomba, kuti muchepetse mamolekyu chifukwa cha kuwomba ndi kugwedezeka chifukwa kutambasula orientation;

② Kuwomba ndi kukokera kuyenera kukhala kochepa moyenerera. Ngati chiŵerengero chowombacho ndi chachikulu kwambiri ndipo liwiro la kukoka kuli mofulumira kwambiri, filimuyo imatambasulidwa m'njira zopingasa komanso zautali, ndiye kuti filimuyo imakhala yotambasulidwa, ndipo kutentha kwa filimuyo kusindikiza kutentha kumakhala kosauka.

Kanemayo ali ndi fungo

Kusanthula chifukwa

1. Utomoni wa zopangira zokha zimakhala ndi fungo;

2. Kutentha kwa extrusion kwa utomoni wosungunuka ndipamwamba kwambiri, zomwe zimapangitsa kuti utomoni uwonongeke, motero umatulutsa fungo;

3. Kuzizira kosakwanira kwa kuwira kwa filimuyo, mpweya wotentha mkati mwa kuwira kwa filimu sikuchotsedwa.

Yankho

①M'malo mwa utomoni zopangira;

② Sinthani kutentha kwa extrusion;

③ Sinthani kuzirala kwa mphete ya mpweya woziziritsa, kuti kuwira kwa filimuyo kuzizire mokwanira.

White precipitates padziko filimu

Chifukwa: Kodi makamaka zina mu zopangira, otsika maselo kulemera utomoni ndi fumbi, etc., amene condense pa nkhungu pakamwa pa processing, ndipo pambuyo kudzikundikira ndalama zina amatengedwa ndi filimu mosalekeza, motero kupanga White precipitates pa filimuyo.

Yankho

①Pakapita nthawi, onjezani liwiro la wononga, onjezerani mphamvu yosungunuka, chotsani madziwo.

② Muzitsuka nkhungu pakamwa nthawi zonse.

③ Wonjezerani kutentha kwa sungunula moyenera kuti mupangitse pulasitiki;

④Gwiritsani ntchitoSILIEK PFAS-free PPA masterbatchakhoza bwino kusintha utomoni processing fluidity, bwino mkati ndi kunja kondomu ntchito, kusintha kubalalitsidwa pakati pa zigawo zikuluzikulu, kuchepetsa agglomeration, kusintha pakamwa kufa kudzikundikira, ndipo pa nthawi yomweyo akhoza kutulutsidwa kuchokera akufa ngodya ya zida, motero kusintha. khalidwe lapamwamba la filimuyo.SILIEK PFAS-free PPA masterbatchndi njira ina yabwino yopangira zowonjezera za fluorinated polymer PPA kuti zikwaniritse zofunikira za chiletso chaposachedwa cha fluorine.SILIEK PFAS-free PPA masterbatchndi choloweza m'malo mwa fluorinated polymer PPA zowonjezera, zomwe zimakwaniritsa zofunikira za chiletso chaposachedwa cha fluorine.

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Mayankho afilimu a LDPE kuti apititse patsogolo khalidwe lazogulitsa

SILIMER Series Non-precipitation Film Slip Masterbatchndi mtundu wa copolysiloxane wosinthidwa wokhala ndi magulu ogwira ntchito opangidwa ndi Silicone. Unyolo wautali wa kaboni umagwirizana ndi utomoni kuti ugwire ntchito yozimitsa, ndipo unyolo wa silicon umayikidwa pamwamba pa filimuyo kuti utenge gawo loterera, lomwe limatha kugwira ntchito yoterera popanda mvula yonse.

Kuwonjezera pang'onoSILIKE SILIMER 5064MB1, Chithunzi cha 5064MB2ndi zinthu zina zingapo zimatha kusintha kwambiri filimuyo, mosiyana ndi talc yachikhalidwe,SILIMER mndandanda wamakanema osagwatalc sichimatuluka, sichimatuluka mu ufa, coefficient of friction imakhala yokhazikika, talc yotentha kwambiri sichimamatira. Pa nthawi yomweyo sizimakhudza wotsatira processing wa filimuyo, sizimakhudza filimu kutentha kusindikiza ntchito, sizimakhudza kuwonekera kwa filimuyo, sikukhudza kusindikiza, laminating ndi zina zotero.

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